Hair drier



FIG. 1 is a bottom, front perspective view of a hair drier in the extended position thereof showing my new design;

FIG. 2 is a front elevational view in the retracted position thereof;

FIG. 3 is a right side elevational view of FIG. 2, the left side being a mirror image thereof;

FIG. 4 is a rear elevational view of FIG. 2;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a hair drier, as shown and described. 